Home / 1,307,106,837.71-1,960,659,058.61-409,720,069.65

Finding the Fourth Proportional to 1,307,106,837.71, 1,960,659,058.61 and 409,720,069.65

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Solution

The fourth proportional to 1,307,106,837.71, 1,960,659,058.61 and 409,720,069.65 is: 614,579,728.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,106,837.71 : 1,960,659,058.61 = 409,720,069.65 : x
  2. Step 2: Convert to fraction form
    1,307,106,837.71/1,960,659,058.61 = 409,720,069.65/x
  3. Step 3: Cross multiply
    1,307,106,837.71x = 1,960,659,058.61 × 409,720,069.65
  4. Step 4: Simplify right side
    1,307,106,837.71x = 803,321,366,051,543,936
  5. Step 5: Solve for x
    x = 803,321,366,051,543,936/1,307,106,837.71
  6. Step 6: Final answer
    x = 614,579,728.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.